• Chapter 1 Introduction
• Section Ii. Equipment Description
• 1-10. Equipment Data.
• Figure 1-2. Air Compressor Major Components.
• 1-11. Safety, Care, And Handling.
• Section Iii. Principles Of Operation
• Figure 1-3. Compressor Air Flow Diagram.
• 1-14. Detailed Principles Of Operation For Engine Assembly.
• F. Exhaust System.
• Chapter 2 Operating Instructions
• Figure 2-1. Air Compressor Assembly, Controls And Indicators.
• Function Or Use
• Figure 2-2. Engine Assembly, Controls And Indicators.
• Section Ii. Operator Preventive Maintenance Checks And Services (Pmcs)
• 2-6. Explanation Of Columns
• E. Leakage Definitions.
• Table 2-1. Operator Preventive Maintenance Checks And Services (Pmcs).
• Operator Preventive Maintenance Checks And Services (Pmcs) (Cont).
• Section Iii. Operation Under Usual Conditions
• Figure 2-3. Compressor Orientation.
• Figure 2-4. Starting Procedures
• Figure 2-5. Hand Position.
• C. Servicing Scuba Cylinders
• Figure 2-6. Servicing Scuba Cylinders
• Table 2-2. Scuba Cylinder Charging Capacities
• Figure 2-7. Shutdown Procedures.
• Section Iv. Operation Under Unusual Conditions
• 2-18. Operation In Cold
• Chapter 3 Operator Maintenance Instructions
• Section Ii. Operator Troubleshooting Procedures
• Table 3-2. Operator Troubleshooting Procedures.
• 5. Engine Exhaust Excessively Black
• 9. Engine Excessively Noisy.
• 12. Compressor Output Too Low.
• Chapter 4 Unit Maintenance Instructions
• 4-5. Checking Unpacked Equipment.
• Section Iii. Preventive Maintenance Checks And Services (Pmcs)
• Table 4-1. Unit Preventive Maintenance Checks And Services (Pmcs) (Cont).
• Section Iv. Unit Troubleshooting Procedures
• Table 4-2. Unit Troubleshooting Procedures.
• 5. Engine Runs Hot.
• 9. Compressor Output Volume Too Low.
• Section V. Unit Maintenance Procedures
• 4-13. Drivebelt Guard.
• Figure 4-1. Drivebelt Guard, Replace.
• 4-14. Compressor Drivebelt.
• Figure 4-2. Compressor Drivebelt, Replace.
• 4-15. Storage Tray.
• Figure 4-3. Storage Tray, Replace.
• 4-16. Air Compressor.
• Figure 4-4. Air Compressor Assembly, Service.
• 4-17. Inlet Filter And Adapter Assembly.
• Figure 4-5. Inlet Filter And Adapter Assembly, Service
• B. Replace.
• Figure 4-6. Inlet Filter And Adapter Assembly, Replace.
• Figure 4-7. Inlet Filter And Adapter Assembly, Repair.
• 4-18. Pre-Filter And Hose Assembly.
• B. Repair.
• Figure 4-9. Pre-Filter And Hose Assembly, Repair.
• 4-19. Oil Filler.
• Figure 4-10. Oil Filler, Replace.
• 4-20. Dipstick.
• Figure 4-11. Dipstick, Replace
• 4-21. Drain Tube.
• Figure 4-12. Drain Tube, Replace
• 4-22. Crankcase Breather Assembly.
• Figure 4-13. Crankcase Breather Assembly, Service.
• B. Replace.
• Figure 4-14. Crankcase Breather Assembly, Replace.
• 4-23. Engine Assembly.
• Figure 4-15. Engine Assembly, Service.
• B. Replace.
• Figure 4-16. Engine Assembly, Replace.
• 4-24. Fuel Lines And Filter.
• Figure 4-17. Fuel Supply Line And Filter, Replace
• (2) High Pressure Fuel Line.  
• Figure 4-18. High Pressure Fuel Line, Replace
• (3) Injector Overflow Line.
• Figure 4-19. Injector Overflow Line, Replace
• (4) Injector Pump Overflow Line.  
• Figure 4-20. Injector Pump Overflow Line, Replace.
• (5) Fuel Tank Filter.  
• Figure 4-21. Fuel Tank Filter, Replace.
• 4-25. Fuel Tank.
• Figure 4-22. Fuel Tank, Replace.
• 4-26. Engine Air Cleaner Assembly.
• Figure 4-23. Air Cleaner, Service.
• B. Replace.
• Figure 4-24. Air Filter, Replace.
• 4-27. Engine Muffler.
• Figure 4-25. Muffler, Replace
• 4-28. Engine Valve Cover
• Figure 4-26. Engine Valve Cover, Replace.
• 4-29. Governor Assembly.
• Figure 4-27. Governor Assembly, Adjust.
• 4-30. Gear Cover Assembly
• Figure 4-28. Crank Handle Guide, Replace
• Figure 4-29. Cover Plate, Replace.
• Figure 4-30. Filler Cap, Replace
• 4-31. Oil Filter Screen
• Figure 4-31. Oil Filter Screen, Service.
• B. Replace
• Figure 4-32. Oil Screen, Replace.
• 4-32. Cold Start Assembly.
• Figure 4-33. Cold Start Assembly, Replace.
• 4-33. Frame.
• Figure 4-35. Plug, Replace
• 4-34. Shock Mounts
• Figure 4-36. Shock Mounts, Replace.
• 4-35. Support Brackets.
• Figure 4-37. Support Bracket, Replace.
• Section Vi. Unit Level Cleaning Procedure For Diving Life Support Air Systems
• B. Installation Or Reinstallation
• 4-41. Cleaning Method Non-Ionic Detergent .
• 4-42. Cleaning Method - Trisodium Phosphate (Tsp) .
• Table 4-3. Tsp Cleaning Solution Volume.
• Table 4-4. Cleaning Solution Flow Rate.
• Table 4-5. Cleaning Agents Comparable With Soft Goods.
• 4-44. Hydrocarbon Inspection And Analysis.
• 4-45. Documentation And Record Keeping.
• Section Vii. Preparation For Storage Or Shipment
• 4-48. Long Term Storage
• 4-49. Preparation For Shipment.
• Figure 4-38. Compressor Unit Sling And Tie Down Arrangement
• Chapter 5 Direct Support Maintenance Instructions
• Table 5-1. Direct Support Troubleshooting Procedures.
• 2. Engine Runs Unevenly: Low Output
• 5. Engine Runs Hot.
• 9. Compressor Pressure Low.
• 10. Compressor Output Volume Low (Cont)
• Section Iii. Direct Support Maintenance Procedures
• 5-7. Gages.
• Figure 5-1. Pressure Gages, Replace.
• 5-8. Gage Panel.
• Figure 5-2. Gage Panel, Replace.
• 5-9. Purifier Assembly.
• Figure 5-3. Purifier Assembly, Service.
• B. Replace.
• Figure 5-4. Purifier Assembly, Replace.
• C. Repair.  
• Figure 5-5. Purifier Assembly, Repair.
• 5-10. Air Compressor.
• Figure 5-6. Air Compressor, Replace.
• 5-11. Fanwheel Assembly.
• Figure 5-7. Fanwheel Assembly, Replace.
• 5-12. Second Stage Separator Assembly.
• Figure 5-8. Second Stage Separator Assembly, Replace.
• B. Repair.
• Figure 5-9. Second Stage Separator Assembly, Repair.
• 5-13. Safety Valve.
• (6) Inspect Pipe
• 5-13. Safety Valve
• Figure 5-10. Safety Valve, Replace.
• 5-14. Final Separator Assembly..
• Figure 5-11. Final Separator Assembly, Replace.
• B. Repair.  
• Figure 5-12. Final Separator, Repair.
• 5-15. Safety Valve.
• Figure 5-13. Safety Valve, Replace.
• 5-16. First Stage Intercooler Coil.
• Figure 5-14. First Stage Intercooler Coil, Replace.
• 5-17. Second Stage Intercooler Coil.
• Figure 5-15. Second Stage Intercooler Coil, Replace.
• 5-18. Aftercooler.
• Figure 5-16. Aftercooler, Replace.
• 5-19. Lines And Fittings.
• Figure 5-17. First Stage Cooler Line, Replace.
• B. Replace Second Stage Cooler Line.  
• Figure 5-18. Second Stage Cooler Line, Replace.
• C. Replace Oil Feed Line.
• Figure 5-19. Oil Feed Line, Replace.
• D. Replace Oil And Filter Line.
• Figure 5-20. Oil And Filter Line, Replace.
• D. Replace Tube Assembly.  
• Figure 5-21. Tube Assembly, Replace
• Figure 5-22. Intercooler To Separator Line, Replace
• Figure 5-23. Third Stage Inlet Line, Replace.
• H. Replace Final Separator To Purifier Assembly Line.  
• Figure 5-24. Final Separator To Purifier Assembly Line, Replace
• 5-20. Oil Pressure Regulator.
• Figure 5-25. Oil Pressure Regulator, Replace.
• Figure 5-26. Oil Relief Valve, Replace.
• Figure 5-27. Sight Glass, Replace.
• 5-21. Oil Pump.
• Figure 5-28. Oil Pump, Replace.
• 5-22. First Stage Valve Head And Valve Assembly.
• Figure 5-29. Valve Head And Valve Assembly, Replace.
• B. Repair.
• Figure 5-30. Valve Head And Valve Assembly, Repair.
• 5-23. Second Stage Valve Head Assembly.
• Figure 5-31. Second Stage Valve Head Assembly, Replace.
• B. Repair.
• Figure 5-32. Second Stage Valve Head Assembly, Repair.
• 5-24. Safety Valve (Second Stage Valve Head).
• Figure 5-33. Safety Valve, Replace
• 5-25. Third Stage Valve Head Assembly.
• Figure 5-34. Third Stage Valve Head Assembly, Replace.
• B. Repair.  
• Figure 5-35. Third Stage Valve Head Assembly, Repair.
• (5) Inspect Valve Plates
• 5-26. Sheave (Pulley).
• Figure 5-36. Sheave (Pulley), Replace.
• 5-27. Fuel Injector.
• Figure 5-37. Fuel Injector, Test.
• B. Replace.  
• Figure 5-38. Fuel Injector, Replace.
• 5-28. Fuel Injection Pump.
• Figure 5-39. Fuel Injector Pump, Adjust.
• Table 5-2. Fuel Injection Timing-Millimeters Btdc (+2 Mm).
• Figure 5-40. Fuel Injection Pump, Replace
• 5-29. Engine Cylinder Head Assembly
• Figure 5-41. Valves, Adjust.
• B. Replace
• Figure 5-42. Cylinder Head Assembly, Replace.
• C. Repair.  
• Figure 5-43. Cylinder Head Assembly, Repair
• (19) Inspect Rocker Arm Shaft
• 5-30. Speed Control Assembly 
• Figure 5-44. Speed Control Assembly, Replace.
• Follow-On Maintenance
• 5-31. Compression Release Assembly.
• Figure 5-45. Compression Release Assembly, Replace.
• 5-32. Gear Cover Assembly.
• Figure 5-46. Gear Cover Assembly, Replace
• 5-33. Cylinder
• Figure 5-47. Cylinder, Replace.
• 5-34. Oil Pump Assembly.
• Figure 5-48. Oil Pump Assembly, Replace.
• 5-35. Flywheel.
• Figure 5-49. Flywheel, Replace.
• 5-36. Fanwheel.
• Figure 5-50. Fanwheel, Replace
• 5-37. Pressure Maintaining Valve.
• Figure 5-51. Pressure Maintaining Valve, Replace.
• (7) Apply Tefion Tape
• 5-38. Air Tank Charging Whip Assembly
• Figure 5-52. Air Tank Charging Whip Assembly, Replace.
• B. Repair
• Figure 5-53. Air Tank Charging Whip Assembly, Repair.
• 5-39. Frame.
• Figure 5-54. Frame, Replace.
• Figure 5-55. Frame, Repair
• Chapter 6 General Support Maintenance Instructions
• Table 6-1. General Support Troubleshooting Procedures
• 2. Engine Runs Unevenly: Low Output.
• 7. Unusual Engine Knocks And Noises.
• 9. Compressor Pressure Low.
• 10. Compressor Output Volume Low.
• 6-7. Gages.
• 6-8. First Stage Cylinder.
• Figure 6-1. First Stage Cylinder, Replace.
• (6) Install Piston
• 6-9. First Stage Piston And Connecting Rod Assembly.
• Figure 6-2. First Stage Piston And Piston Rod Assembly, Replace.
• B. Repair.
• Figure 6-3. First Stage Piston And Connecting Rod Assembly, Repair.
• (3) Clean Piston
• 6-10. Second Stage Cylinder.
• Figure 6-4. Second Stage Cylinder, Replace.
• (7) Install Piston
• 6-11. Second Stage Piston And Connecting Rod Assembly.
• Figure 6-5. Second Stage Piston And Connecting Rod Assembly, Replace
• B. Repair.  
• Figure 6-6. Second Stage Piston And Connecting Rod Assembly, Repair.
• 6-12. Third Stage Cylinder
• Figure 6-7. Third Stage Cylinder And Crosshead Guide, Replace.
• 6-13. Third Stage Crosshead And Rod Assembly
• Figure 6-8. Third Stage Crosshead And Connecting Rod Assembly, Replace
• B. Repair.
• Figure 6-9. Third Stage Crosshead And Connecting Rod Assembly, Repair.
• (2) Clean Piston
• 6-14. Compressor Crankshaft And Main Bearings
• Figure 6-10. Compressor Crankshaft And Main Bearings, Replace
• Follow-On Maintenance
• 6-15. Compressor Crankcase
• Figure 6-11. Compressor Crankcase, Replace.
• 6-16. Fuel Injection Pump
• Figure 6-12. Fuel Injection Pump, Repair.
• 6-17. Governor Assembly
• Figure 6-13. Governor Assembly, Replace.
• B. Repair.  
• Figure 6-14. Governor Assembly, Repair.
• 6-18. Gear Cover Assembly
• Figure 6-15. Shaft Bushing, Replace.
• (2) Replace Primer Assembly.  
• Figure 6-16. Primer Assembly, Replace.
• 6-19. Camshaft Assembly.
• Figure 6-17. Camshaft Assembly, Replace.
• B. Repair.
• Figure 6-18. Camshaft Assembly, Repair.
• 6-20. Piston And Connecting Rod Assemblies.
• Figure 6-19. Piston And Connecting Rod Assemblies, Replace
• B. Repair.
• Figure 6-20. Piston And Connecting Rod Assemblies, Repair
• 6-21. Crankshaft And Mainbearing Support.
• Figure 6-21. Crankshaft, Replace.
• B. Replace.  
• Figure 6-22. Crankshaft, Repair.
• 6-22. Engine Crankcase.
• Figure 6-23. Crankcase, Replace.
• 6-23. Air Tank Charging Whip Assembly
• Figure 6-24. Air Tank Charging Whip Assembly, Calibrate
• Appendix A References
• Appendix B Maintenance Allocation Chart
• B-3. Column Entries.
• B-4. Tool And Test Equipment Requirements
• Section Ii Maintenance Allocation Chart
• Maintenance Allocation Chart -Cont
• Maintenance Allocation Chart -Cont
• Maintenance Allocation Chart -Cont
• Maintenance Allocation Chart -Cont
• Maintenance Allocation Chart -Cont
• Maintenance Allocation Chart -Cont
• Section Iii. Tool And Test Equipment Requirements
• Section Iv. Remarks
• Appendix C Components Of End Item And Basic Issue Items Lists
• Section Ii. Components Of End Items
• Section Iii. Basic Issue Items
• Description Usable On Code
• Appendix D Additional Authorization List
• Appendix E Expendable Supplies And Materials List
• Section Ii. Expendable Supplies And Materials List
• Expendable Supplies And Materials List (Cont)
• Appendix F Torque Limits
• Table F-2. Self-Locking Nut Breakaway Torque Values
• Index
• Index -Cont
• Index -Cont
• Index -Cont
• The Metric System And Equivalents

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